This is a complete set of 4 bottles of high quality 100mL Printer Ink refill set for EPSON printers. This high quality pigment based 100mL Color Ink Jet would give you the best match compare with the EPSON. This Color Ink Cartridge is the high durability and reliability product. It has been refined pure pigment down to their primary particle size, well into the sub micro level. Fast drying time and low cost. Best choice for you! We are selling the truly special Color Ink Jet, the different between universal refill ink and special refill ink is that the universal ink can use for almost every model printer, and the fluency is good which wouldn't clog the printer. The special Refill Printer Ink only can use for the suitable model printer, besides good fluency, the printing quality is much better that the universal one.